package com.atguigu.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.atguigu.common.MessageConstant;
import com.atguigu.service.MemberService;
import com.atguigu.service.ReportService;
import com.atguigu.service.SetmealService;
import com.atguigu.vo.Result;
import com.sun.javadoc.SeeTag;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    MemberService memberService;
    @Reference
    SetmealService setmealService;
    @Reference
    ReportService reportService;

    @RequestMapping("/getMemberReport")
    public Result getMemberReport(){
        try {
            Map<String, List> map=new HashMap<>();
            List<String> months=new ArrayList<>();

            Calendar calendar=Calendar.getInstance();
            calendar.add(Calendar.MONTH,-12);
            for(int i=1;i<=12;i++){
                calendar.add(Calendar.MONTH,1);
               String month= new SimpleDateFormat("yyyy-MM").format(calendar.getTime());
               months.add(month);
            }
            // =new ArrayList<>();
            List<Integer> memberCount= memberService.getMemberCountByMonth(months);
            map.put("months", months);
            map.put("memberCount", memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);

        }

    }
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport(){

        try {

            Map<String, List> map=new HashMap<>();

            List<String> setmealNames =new ArrayList<>();
            List<Map<String,Object>> setmealCountList =setmealService.getSetmealReport();
            for (Map<String, Object> stringIntegerMap : setmealCountList) {
                String name = (String)stringIntegerMap.get("name");
                setmealNames.add(name);
            }
            map.put("setmealCount", setmealCountList);
            map.put("setmealNames", setmealNames);

            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);

        }

    }
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData(){

        try {
            Map<String,Object>map = reportService.getBusinessReportData();

            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);

        }

    }

    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){

        try {
            Map<String,Object>result = reportService.getBusinessReportData();

            String reportData =(String) result.get("reportData");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            //获得Excel模板文件绝对路径
            //file.separator这个代表系统目录中的间隔符，说白了就是斜线。
            String temlateRealPath =request.getSession().getServletContext().getRealPath("template")+
                    File.separator+"report_template.xlsx";

            XSSFWorkbook workbook=new XSSFWorkbook(new FileInputStream(new File(temlateRealPath)));
            XSSFSheet sheet =workbook.getSheetAt(0);
            XSSFRow row =sheet.getRow(2);
            row.getCell(5).setCellValue(reportData);
            row =sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日出游数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周出游数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月出游数

            int rowNum = 12;
            for(Map map : hotSetmeal){//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }
            //通过输出流进行文件下载
            ServletOutputStream out = response.getOutputStream();
            // 下载的数据类型（excel类型）
            response.setContentType("application/vnd.ms-excel");
            // 设置下载形式(通过附件的形式下载)
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            workbook.write(out);

            out.flush();
            out.close();
            workbook.close();

            return null;
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL,null);
        }

    }

}
